High-frequency acousto-optic light modulation by double propagation of the beam through two Bragg cells

Kotov, V.M., Averin, S.V., Kotov, E.V.

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For Russian citation (Opticheskii Zhurnal):

Котов В.М., Аверин С.В., Котов Е.В. Высокочастотная акустооптическая модуляция света при двойном прохождении излучения через две брэгговские ячейки // Оптический журнал. 2019. Т. 86. № 3. С. 3–7. http://doi.org/10.17586/1023-5086-2019-86-03-03-07

Kotov V.M., Averin S.V., Kotov E.V. High-frequency acousto-optic light modulation by double propagation of the beam through two Bragg cells [in Russian] // Opticheskii Zhurnal. 2019. V. 86. № 3. P. 3–7. http://doi.org/10.17586/1023-5086-2019-86-03-03-07

For citation (Journal of Optical Technology):

V. M. Kotov, S. V. Averin, and E. V. Kotov, "High-frequency acousto-optic light modulation by double propagation of the beam through two Bragg cells," Journal of Optical Technology. 86(3), 129-132 (2019). https://doi.org/10.1364/JOT.86.000129

Abstract:

A method of light modulation in a wide acoustic frequency band by means of light transmission through two identical acousto-optic (AO) Bragg cells, in which acoustic waves propagate in opposite directions, is proposed and investigated. The peculiarities of the method make it possible to compensate the shift between the interfering beams caused by beam deviation during the AO diffraction process. The method is implemented experimentally with two AO cells fabricated from paratellurite for high-frequency light modulation for a wavelength of 0.63 μm.

Keywords:

acousto-optic diffraction, Bragg diffraction mode, frequency shift, amplitude modulation

Acknowledgements:

The research was partially supported by the Russian Foundation for Basic Research (RFBR) (grants Nos.18-07 00259, 16-07-00064).

OCIS codes: 230.0230, 230.1040

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